Honors Practice 2.6 test

The electron configuration of an atom is 1s²2s²2p⁶.  The number of electrons in the atom is 

• 3
• 6
• 8
• 10

The electron configuration of an atom is 1s²2s²2p⁶.  The number of electrons in the atom is 

• 3
• 6
• 8
• 10

What do you start electron configuration with?

• 1s²
• 1d¹⁰
• 1f¹⁴
• 1p⁶

Match the parts of the electron configuration to what it represents.

• period

• 1

• element

• s

• block

• 2

Finish the electron configuration for chlorine:

1s² 2s² ___ 3s² 3p⁶

This element's electron configuration got mixed up! What element is this?

x6 x2 x10 x6 x6 x2 x2 x2 x9 x2

Match the element to it's noble gas notation:

• [Ar] 4s² 3d⁹

• silicon

• [Ne] 3s² 3p²

• copper

• [Kr] 5s²

• strontium

• [Kr]

• krypton

Electron configuration of oxygen (O)

What atom matches this electron configuration?
1s²2s²2p⁶3s²3p⁶4s²3d¹⁰

• Zinc
• Copper
• Nickel
• Germanium

How many electrons can the first energy level hold?

• 1
• 2
• 8
• 0